Built-in test system and method
    1.
    发明授权
    Built-in test system and method 有权
    内置测试系统和方法

    公开(公告)号:US09246530B1

    公开(公告)日:2016-01-26

    申请号:US14588034

    申请日:2014-12-31

    Abstract: A communication device includes a DC input component, a transmitting component an envelope detecting component, a receiving component, a storage component and a comparator. The DC input component generates a first direct current signal and a second direct current signal. The transmitting component generates a first transmitted signal based on the first direct current signal and a second transmitted signal based on the second direct current signal. The envelope detecting component generates a first envelope signal based on the first transmitted signal and generates a second envelope signal based on the second transmitted signal. The receiving component generates a first received signal based on the first envelope signal and a second received signal based on the second envelope signal. The storage component has a priori information stored therein. The comparator outputs a correlation signal based on the first received signal, the second received signal and the a priori information.

    Abstract translation: 通信设备包括DC输入组件,发送组件,包络检测组件,接收组件,存储组件和比较器。 DC输入部件产生第一直流信号和第二直流信号。 发送部件基于第一直流信号和基于第二直流信号的第二发送信号生成第一发送信号。 包络检测部件基于第一发送信号产生第一包络信号,并且基于第二发送信号产生第二包络信号。 接收组件基于第一包络信号和基于第二包络信号的第二接收信号产生第一接收信号。 存储组件具有存储在其中的先验信息。 比较器基于第一接收信号,第二接收信号和先验信息输出相关信号。

    Adaptation of zero intermediate frequency (ZIF) transmitter to correct local oscillator (LO) leakage

    公开(公告)号:US10382087B1

    公开(公告)日:2019-08-13

    申请号:US16221391

    申请日:2018-12-14

    Abstract: An integrated circuit. The integrated circuit comprises an analog transmit chain, an analog receive chain, a processor coupled to the analog transmit and receive chains, and a non-transitory storage coupled to the processor and storing executable code. When executed by the processor, the executable code causes the processor to cause a portion of a radio frequency (RF) signal to be transmitted by the analog transmit chain, to determine a first direct current (DC) voltage of a baseband signal provided by the analog receive chain, to cause a DC voltage offset to be input into the analog transmit chain, to determine a second DC voltage of another baseband signal provided by the analog receive chain, to determine a DC voltage offset compensation based on the first and second DC voltages and the DC voltage offset, and to cause the DC voltage offset compensation to be used to transmit signals.

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